fahrenheit to kelvin converter
1 Fahrenheit equals 255.928 kelvin. Conversions use K = °F × 0.555556 + 255.37
°F → 255.928 K
K = °F × 0.555556 + 255.37
Converter
Worked examples
- 1 °F = 255.928 K
- 2 °F = 256.483 K
- 5 °F = 258.15 K
- 10 °F = 260.928 K
- 100 °F = 310.928 K
Fahrenheit to kelvin conversion table
| °F | K | Arithmetic |
|---|---|---|
| -40 °F | 233.15 K | × 0.555556 + 255.37 |
| -20 °F | 244.261 K | × 0.555556 + 255.37 |
| -10 °F | 249.817 K | × 0.555556 + 255.37 |
| 0 °F | 255.372 K | × 0.555556 + 255.37 |
| 10 °F | 260.928 K | × 0.555556 + 255.37 |
| 15 °F | 263.706 K | × 0.555556 + 255.37 |
| 20 °F | 266.483 K | × 0.555556 + 255.37 |
| 25 °F | 269.261 K | × 0.555556 + 255.37 |
| 30 °F | 272.039 K | × 0.555556 + 255.37 |
| 32 °F | 273.15 K | × 0.555556 + 255.37 |
| 35 °F | 274.817 K | × 0.555556 + 255.37 |
| 37 °F | 275.928 K | × 0.555556 + 255.37 |
| 40 °F | 277.594 K | × 0.555556 + 255.37 |
| 50 °F | 283.15 K | × 0.555556 + 255.37 |
| 68 °F | 293.15 K | × 0.555556 + 255.37 |
| 70 °F | 294.261 K | × 0.555556 + 255.37 |
| 75 °F | 297.039 K | × 0.555556 + 255.37 |
| 80 °F | 299.817 K | × 0.555556 + 255.37 |
| 90 °F | 305.372 K | × 0.555556 + 255.37 |
| 98.6 °F | 310.15 K | × 0.555556 + 255.37 |
How to convert °F to K
- Take your value in Fahrenheit.
- Multiply by 0.555556, then apply the offset 255.37
- That is your answer in kelvin — no rounding needed until you choose a display precision.
Related conversions
K to °F°C to K°F to °CK to °Call temperature units
Questions
How many kelvin in 1 Fahrenheit?
Exactly 255.928 K. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert °F to K?
Multiply the Fahrenheit figure by 0.555556 and then apply the offset 255.37 — or use the converter above, which updates as you type.
Is °F to K the same as K to °F?
No — they are inverses. One °F is 255.928 K, while one K is -457.87 °F.
What is -40 °F in K?
-40 °F = 233.15 K (see the value page for the full arithmetic).